1 of 5 1.0 features no-load power consumption < 30mw at 230v ac in typical 5v/2a power supplies fast dynamic response with secondary-side load transient detection without opto-coupler direct drive of low-cost bjt power switch achieving high effciency tight constant-voltage and constant-current regulation across line and load range with primary-side feedback and control intelligent low power management achieves ultra-low operating current at no-load proprietary optimized line/load adaptive maximum constant frequency pwm switching with quasi-resonant operation achieves best size, effciency, and common mode noise user-confgurable 4-level cable drop compensation provides design fexibility ez-emi ? design enhances manufacturability adaptive multi-mode pwm/pfm control improves effciency no external loop compensation components required built-in single-point fault protections against output short- circuit, output over-voltage, and output over-current on-chip internal over-temperature protection no audible noise over entire operating range smartdefender ? smart hiccup technology helps address issues of soft shorts in cables and connectors by effectively reducing the average output power at fault conditions without latch 2.0 description the IW1601 is a high performance ac/dc power supply controller that uses digital control technology to build peak current mode pwm fyback power supplies. the device directly drives a power bjt and operates in quasi-resonant mode to provide high effciency along with a number of key built-in protection features while minimizing the external component count, simplifying emi design, and lowering the total bill of material cost. the IW1601 removes the need for secondary feedback circuit while achieving excellent line and load regulation. it also eliminates the need for loop compensation components while maintaining stability over all operating conditions. pulse-by-pulse waveform analysis allows for a loop response that is much faster than traditional solutions, resulting in improved dynamic load response. the built- in power limit function optimizes transformer design in universal off-line applications and allows for a wide input voltage range. dialogs innovative proprietary technology ensures that power supplies built with the IW1601 and the secondary -side voltage positioning controller iw600 can achieve both the highest average active effciency and less than 30mw no-load power consumption, and have fast dynamic load response in a compact form factor in typical 5v2a 10w applications. 3.0 applications compact ac/dc adapters or chargers for media tablets and smart phone ac/dc adapters for consumer electronics IW1601 product summary off-line digital green-mode quasi-resonant pwm controller rev. 0.3 preliminary IW1601 ? 2015 dialog semiconductor (uk) ltd. product summary
2 of 5 4.0 pinout description pin # name type pin description 1 v sense analog input auxiliary voltage sense. used for primary side regulation and detection of secondary-side load transient signal. 2 gnd ground ground. 4 st power startup voltage input. 5 cs/cdc analog input primary current sense and external cable drop compensation (cdc). used for cycle-by-cycle peak current control and limit in primary-side cv/cc regulation. also used for cdc confguration. 6 output output base drive for bjt. 7 gnd ground ground. 8 v cc power input ic power supply. v out rtn + + + u1 IW1601 v sense gnd v cc gnd 1 2 8 7 6 4 5 l n output cs/cdc st r cdc 1 2 d1 iw600 figure 3.1: IW1601 typical application circuit (achieving < 30mw no-load power consumption in 5v2a 10w adapter designs with iw600 secondary voltage position ic) figure 4.1: 7 lead soic-7 package IW1601 v sense gnd st v cc gnd output cs/cdc 1 2 8 7 6 4 5 IW1601 product summary off-line digital green-mode quasi-resonant pwm controller rev. 0.3 preliminary IW1601 ? 2015 dialog semiconductor (uk) ltd. product summary
3 of 5 5.0 absolute maximum ratings absolute maximum ratings are the parameter values or ranges which can cause permanent damage if exceeded. for maximum safe operating conditions, refer to electrical characteristics in section 6.0. parameter symbol value units dc supply voltage range (pin 8, i cc = 20ma max) v cc -0.3 to 25.0 v continuous dc supply current at v cc pin (v cc = 15v) i cc 25 ma st output (pin 4) -0.3 to 25 v output (pin 6) -0.3 to 4.0 v v sense input (pin 1, i vsense 10ma) -0.7 to 4.0 v cs/cdc input (pin 5) -0.3 to 4.0 v maximum junction temperature t jmax 150 c operating junction temperature t jopt -40 to 150 c storage temperature t stg C65 to 150 c thermal resistance junction-to-ambient ja 100 c/w esd rating per jedec jesd22-a114 (except the hv pin) (note 1) 2,000 v latch-up test per jesd78a 100 ma notes: note 1. esd rating including the hv pin: hbm= 400v. IW1601 product summary off-line digital green-mode quasi-resonant pwm controller rev. 0.3 preliminary IW1601 ? 2015 dialog semiconductor (uk) ltd. product summary
4 of 5 6.0 physical dimensions 7.0 ordering information part number options package description IW1601-00 no latch, 2.8v cc shutdown voltage, smart hiccup with 2/8 duty cycle soic-7 tape & reel 1 IW1601-01 ovp latch, cc shutdown and latch, 3.5v cc shutdown voltage, no smart hiccup soic-7 tape & reel 1 IW1601-02 ovp latch, no cc operation and latch, no smart hiccup soic-7 tape & reel 1 IW1601-03 no latch, 3.0v cc shutdown voltage, no smart hiccup soic-7 tape & reel 1 note 1: tape & reel packing quantity is 2,500/reel. minimum ordering quantity is 2,500. compliant to jedec standard ms12f controlling dimensions are in inches; millimeter dimensions are for reference only this product is rohs compliant and halide free. soldering temperature resistance: [a] package is ipc/jedec std 020d moisture sensitivity level tbd [b] package exceeds jedec std no. 22-a111 for solder immersion resistance; package can withstand 10 s immersion < 260?c dimension d does not include mold flash, protrusions or gate burrs. mold flash, protrusions or gate burrs shall not exceed 0.15 mm per end. dimension e1 does not include interlead flash or protrusion. interlead flash or protrusion shall not exceed 0.25 mm per side. the package top may be smaller than the package bottom. dimensions d and e1 are determined at the outermost extremes of the plastic bocy exclusive of mold flash, tie bar burrs, gate burrs and interlead flash, but including any mismatch between the top and bottom of the plastic body. 7-lead small outline (soic) package coplanarity 0.10 (0.004) 8 5 4 1 seating plane a1 e h b d e a c l h x 45 inches symbol millimeters min 0.004 a1 max min max 0.0098 0.10 0.25 a 0.069 1.75 0.0123 b 0.0200 0.31 0.51 0.0075 c 0.0098 0.19 0.25 0.189 d 0.1970 4.80 5.00 0.1495 e 0.1575 3.80 4.00 0.05 bsc e 1.27 bsc 0.2284 h 0.244 5.80 6.20 h 0.0158 l 0.050 0.40 1.27 8 0 0.0098 bsc 0.25 bsc IW1601 product summary off-line digital green-mode quasi-resonant pwm controller rev. 0.3 preliminary IW1601 ? 2015 dialog semiconductor (uk) ltd. product summary
disclaimer information in this document is believed to be accurate and reliable. however, dialog semiconductor does not give any representations or warranties, expressed or implied, as to the accuracy or completeness of such information. dialog semiconductor furthermore takes no responsibility whatsoever for the content in this document if provided by any information source outside of dialog semiconductor. dialog semiconductor reserves the right to change without notice the information published in this document, including without limitation the specifcation and the design of the related semiconductor products, software and applications. applications, software, and semiconductor products described in this document are for illustrative purposes only. dialog semiconductor makes no representation or warranty that such applications, software and semiconductor products will be suitable for the specifed use without further testing or modifcation. unless otherwise agreed in writing, such testing or modifcation is the sole responsibility of the customer and dialog semiconductor excludes all liability in this respect. customer notes that nothing in this document may be construed as a license for customer to use the dialog semiconductor products, software and applications referred to in this document. such license must be separately sought by customer with dialog semiconductor. all use of dialog semiconductor products, software and applications referred to in this document are subject to dialog semiconductors standard terms and conditions of sale , unless otherwise stated. ? dialog semiconductor (uk) ltd. all rights reserved. rohs compliance dialog semiconductor complies to european directive 2001/95/ec and from 2 january 2013 onwards to european directive 2011/65/eu concerning restriction of hazardous substances (rohs/rohs2). dialog semiconductors statement on rohs can be found on the customer portal https://support.diasemi.com/ . rohs certifcates from our suppliers are available on request. 5 of 5 contacting dialog semiconductor united kingdom dialog semiconductor (uk) ltd phone: +44 1793 757700 germany dialog semiconductor gmbh phone: +49 7021 805-0 the netherlands dialog semiconductor b.v. phone: +31 73 640 88 22 email info_pcbg@diasemi.com north america dialog semiconductor inc. phone: +1 408 845 8500 japan dialog semiconductor k. k. phone: +81 3 5425 4567 taiwan dialog semiconductor taiwan phone: +886 281 786 222 web site: www.dialog-semiconductor.com singapore dialog semiconductor singapore phone: +65 648 499 29 hong kong dialog semiconductor hong kong phone: +852 3769 5200 korea dialog semiconductor korea phone: +82 2 3469 8200 china dialog semiconductor (shenzhen) phone: +86 755 2981 3669 dialog semiconductor (shanghai) phone: +86 21 5424 9058 IW1601 product summary off-line digital green-mode quasi-resonant pwm controller rev. 0.3 preliminary IW1601 ? 2015 dialog semiconductor (uk) ltd. product summary
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